Tooth-regulating device.



J. ADERHR.

TOOTH REGULATING DEVICE.

APPLICATION rum) snr'r. 29, 1902.

Patented Nov. 30, 1909.

.I/AIIIIIIIIIII vllllrlllflllllll Cit ITED STATES PATENT OFFICE.

JULIUS AIDERER, OF NEW. YORK, N. Y.

TOOTH-REGULATING DEVICE.

To all whom 'it may concern:

Be it known that I, JULiUs Annnnn, a citizen of the United States, and aresident of the city, county, and State of New York, have inventedcertain new. and useful Improvements in Tooth-Regulating Devices, ofwhich the following is a specification.

My invention relates to tooth-regulating devices, and has for its objectto provide an appliance of this character wherein the threads of theadjusting screws are so covered while the device is in use that themouth of the patient will be protected from such threads, and onewherein the threads themselves are raised above the normal surface ofthe wire of the delivery member for adding strength to the structure andfor cooperation with the thread covering or pro tecting portion of theappliance.

This invention is in some particulars an improvement over that type oftooth regulating appliance wherein the delivery member which is eitherstraight or arched in form is screw-threaded for a considerable distancefor receiving the adjusting nut which in turn delivers its thrustagainst the anchor member adapted to be secured to an anchor tooth. Inthe type of appliance just referred to the screw threaded portion of thedelivery member has always been relatively much longer than theadjustment nut, thereby resulting in the exposure of its screw thread inthe mouth to the injury and annoyance of the wearer. This defect isremedied in my present improvement, which prevents any exposurewhatsover of screw threads throughout the intended range of adjustmentof the appliance. The delivery member of the old form of appliance isweakened and often breaks at its screw threaded port-ion, first, for thereason that said screw threaded portion is so extensive in length, andsecond, for the reason that the threads are cut directly into the metalof the delivery member which is generally made of wire of sixteen toeighteen gage. This weakness is done away with in the presentimprovement because the length of the screw threaded portion of thedelivery member is reduced to a minimum and its diameter is increased,thereby having the effect of strengthening rather than weakening thedelivery member at this point.

In the drawings accompanying and forming a part of this specificationFigure 1 is Specification of Letters Patent. Patented N 36, 1909,Application filed September 29, 1908.

Serial No. 455,235.

a plan View of a regulating arch having my improvement applied thereto.Fig. 2 is a detailed view of some of the parts shown in Fig. 1 detachedand upon an enlarged scale. Fig. 8 is a plan view showing my improvementapplied to a regulating arch adapted to press the teeth outwardly. Fig.4 is a view, on an enlarged scale, of one end of the delivery membertogether with the adjusting nut and anchor device showing a differentform of nut'from that illustrated in Fig. 2; and Fig. 5 illustrates afurther modification of the connecting devices.

In F 1 and-2 a regulating arch l of well known form is illustrated,which arch is preferably made of hard wire to secure springiness, and isprovided atwthe extremity of its lugs with screw threads which arefrequently cut into the wire, which wire is frequently of from sixteento eighteen gage. By my present improvement, however, the screw thread 2is raised above the normal surface of the wire of the delivery member 1.By having the screw thread raised above the normal face of the wire, anut traversing such thread may pass over the end thereof which is towardthe body portion of the delivery member, which would not be the casewere the threads out directly into the wire where this is of its normalthickness. One way of securing the raised screw threads is to form thethreads upon the sleeves 3 rather than to cut them directly into thematerial of the wires. The sleeves 3 will be made so that they will.have a tight fit upon the wire 1 and may then be secured to the wire insome approved manner, as for instance by soldering. The adjustmentsleeves or nuts are long relative to the length of the threaded portion2 of the delivery member. In the present instance adjustment sleeves Iare illustrated each of which is provided in ternally with a screwthread 5 to engage the screw thread 2 on the delivery member, and thisthread 5, it will be seen, can in practice he made several times longerthan the thread 2 so that the range or amplitude of adjustment of thesleeve 4t upon the screw thread of the delivery member may be ofconsiderable extent without running the adjustment sleeve 4: off of andexposing the thread 2 at either end. The thrust member for the appliancewill be fastened to one of the teeth in the mouth of the patient, and inthe present instance is shown as comprising an anchor tube 8 which iscarried by the tooth clamp band 9 which will be securely clamped to thetooth. The adjustment sleeve carries wrench engaging faces in the formof a nut 6 for rotating the sleeve and thereby causing the same totraverse the screw threads of the delivery member. In Figs. 3 and 4 thenut head will engage the end of the anchor sleeve 8, S for affording thethrust bearing. In Figs. 1 and 2 a reduced portion 7 is shown upon theadjustment sleeve a and a shoulder 10 is provided at the end of suchreduced portion for engaging the sleeve 8, which is shown shorter inFig. 2 than in Fig. l. The anchor sleeve 8 is shown as split at 11 in awell known manner for producing friction upon the adjustment sleeve.

The clamp band 9 may carry at one end a conical sleeve 15 having itssmaller end directed toward the opposite end of the band from whichextends a threaded rod 16 which will project through the conical sleeveand be engaged by a conical extension 18 of the nut 17 which is adaptedto mate with the chambered interior of the sleeve and adapted to act asa lock nut, it being split for this purpose.

In Fig. 5 the anchor member 8 is shown reduced in length as comparedwith the anchor members in the other views, and such anchor memberengages a reduced portion r upon the adjustment sleeve and such reducedportion is provided at each end with shoulders l e-14, one of whichshoulders will act as the thrust bearing face for engaging the anchormember. This device prevents longitudinal movement of the adjustmentsleeve relative to the anchor tooth; but permits a certain amount ofpivotal move ment relative thereto, which is desirable in certaindevices wherein a large range of adjustment of the delivery member isdesired. In the device illustrated in Fig. 5, the anchor member will belongitudinally slit and sprung open and the reduced portion of thesleeve will be inserted in the anchor member when this will be closedup.

Having described my invention I claim:

1. In a tooth regulating device the combination with an anchor member,and means for securing the same to a tooth, of an interiorly screwthreaded sleeve rotatably carried thereby, and a wire having at its enda screw thread raised above the normal surface of the wire and matingwith the said interior screw thread.

2. The combination with a sleeve having an interior screw thread, of awire delivery member provided with a screw thread having its baselocated outwardly-of the normal surface of the wire and extendinglongitudinally a distance less than the length of the sleeve.

3. In a tooth regulating device, the com bination with a delivery memberhaving a short length of screw thread elevated above the normal surfaceof the said member, of an adjustment sleeve long relative to the lengthof said screw thread, internally threaded for engaging the thread of thedelivery member and having a thrust shoulder, and an anchor member forsupporting the adjustment sleeve and having a shoulder for receiving thethrust of the shoulder thereon.

t. In a tooth regulating device, the combination with a smooth deliverymember, of an externally screw threaded sleeve having a fit withthe'delivery member, an adjustment sleeve having internal threads forengaging the external threads of the firstv named sleeve, and an anchormember for supporting the adjustment sleeve and receiving the thrusttherefrom. I

In witness whereof, I have signed my name to the foregoing specificationin the presence of two subscribing witnesses.

JULIUS ADERER.

IVitnesses SAMUEL EMBERSON.

